Communications, electrical: acoustic wave systems and devices inventions 05/06

20060109741 - Method and system for synthetic aperture sonar: A method and system for synthetic aperture sonar provide improved position estimates of a receive array as in moves through a body of water....

20060109742 - Method and system for synthetic aperture sonar: A method and system for synthetic aperture sonar provide improved position estimates of a receive array as in moves through a body of water....

20060109743 - Method and system for synthetic aperture sonar: A method and system for synthetic aperture sonar provide improved position estimates of a receive array as in moves through a body of water....

20060109744 - System and method for computing inorganic particle suspensions by wave and current action: A method for estimating a suspended sediment distribution in an ocean region. The method includes receiving time-dependent variables including wave height, wave period, wave propagation direction, steady current magnitude, steady current direction, and water depth, and an estimate of bottom sediment distribution, calculating a new bottom sediment distribution using a...

20060109745 - System and method for underwater target detection from broadband target returns: The probability of detection of an underwater moving target is enhanced by the selective summing of a multiplicity of reverberation suppressed, moving target detections, each appearing in a different and non-overlapping, narrow frequency band of a unitary, broadband transmission. The motion-sensitive target echoes are the result of a multiple-pulse broadband...

20060109746 - Flextensional vibration sensor: A vibration sensing device, package and system and a method of manufacturing a vibration sensing device are disclosed. The vibration sensing device comprises a body whose geometry is such that it exhibits flextensional properties....

20060104158 - Method for determining formation quality factor from well log data and its application to seismic reservoir characterization: A method for seismic characterization of subsurface Earth formations includes determining at least one of compressional velocity and shear velocity, and determining reservoir parameters of subsurface Earth formations, at least including density, from data obtained from a wellbore penetrating the formations. A quality factor for the subsurface formations is calculated...

20060104159 - Narrowband phase difference measurement technique for sonar applications: The present invention is directed to a sonar system that includes a transmitter configured to direct multi-frequency transmit signals into a propagation channel. Each multi-frequency transmit signal includes a first frequency and a second frequency. A receiver is tuned to receive multi-frequency return signals propagating in the propagation channel. Each...

20060098529 - Method for data regulariization for shot domain processing: Method for interpolating aliased seismic data to generate shot records at regular shot points. The method involves sorting the data into common offsets to obtain the finer sampling in the common-offset domain, then using DMO to transform the data to zero offset to eliminate azimuth and offset variations, from which...

20060098530 - Directional transducers for use in down hole communications: A communication device associated with a well has a transducer and a controller. The transducer is part of a first communication device and converts a signal between an electrical form and an acoustic form. The controller controls the transducer so that the transducer has a preferred directionality with respect to...

20060098531 - Acoustic telemetry systems and methods with surface noise cancellation: Acoustic telemetry systems and methods with surface noise cancellation. One illustrative embodiment may include an acoustic telemetry system comprising a transmitter configured to generate an acoustic information signal that propagates along a drillstring, and a receiver configured to detect an acoustic receive signal from the drillstring and a noise signal...

20060098532 - Mud pulse landing assembly for use in directional drilling: A mud pulse landing assembly (10) which allows for the removal of the mud pulse generator (16) containing the mud pulse orifice (106), thus creating an unobstructed passageway for any tool or instrumentation that may need to be passed through the drill string. The retainer (14) of the mud pulse...

20060098533 - Method and apparatus for echolocation: Method and apparatus for application of echolocation to robot guidance and assisting the blind. The method is based on the echolocation of bats. It combines a source of pulsed ultrasound (100) with a recently-developed acoustic vector probe (AVP) (200) into an echolocation instrument (1000), together with a data-acquisition system (300),...

20060098534 - Sound source location and quantification using arrays of vector probes: Method and apparatus for locating and quantifying sound sources using an array of acoustic vector probes (200). Signals received at the probes are converted to digital form and fed into a digital signal processor (400) which computes the sound pressure and the sound-intensity vector at each probe. The set of...

20060092764 - Method of and apparatus for processing seismic data: A method of processing seismic data that includes including first and second modes of seismic energy where the second mode has been generated by partial mode conversion of the first mode at a boundary face of a layer of the seabed includes the step of cross-correlating a trace acquired at...

20060092765 - Estimating the time of arrival of a seismic wave: Data processing means are described for calculating an estimated time of arrival of a seismic or microseismic P or S wave at a sensor station, based on a P to S wave velocity ratio, a calculated estimated time of origin of the event and, where the estimated arrival time of...

20060092766 - Method and system for predicting production of a well: Production of a well is predicted by associating log profiles for wells in a reservoir to production indicators for wells in the reservoir. A log for the well is matched to a corresponding log profile. The log profiles may each be generated by clustering logs for wells in the reservoir....

20060092767 - Diamagnetic current response transducer for sensing pressure gradient in a fluid medium: A pressure gradient sensor for seismic and other applications utilizing the principle of diamagnetic drift. The sensor comprises at least one transducer, each transducer made of or containing a medium having at least one species of mobile charged particles such as electrons or holes that exhibit diamagnetic drift under a...